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SKU: 99752118
Grundfos Hydro Multi-E 3 x CRNE 3-4 Three Phase 3 x 0.37kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Logistics freight depots managing continuous driver amenities rely on the Hydro Multi-E 3 CRNE 3-4. Three Grundfos CRNE 3-4 multistage pumps work in unison on the base frame, modulating rotational speed to follow the facility draw curve. Part number 99752118 provides the complete tested package in a single order line.
Volumetric discharge achieves up to 270 L/min across high-demand outlets. Multistage vertical hydraulics produce up to 38 metres of maximum head. Integrated Multi-Master intelligence coordinates the pumps without requiring an external control panel, ensuring automatic role swapping and uninterrupted pressure stabilization.
Supplied on a shared anti-vibration chassis, the system brings together stainless steel manifolds, two Rp 2 inch threaded manifold connections, isolation and non-return valves, pressure sensors, plus a 24L diaphragm tank. It connects to a 3 x 380-415 V supply at 50 / 60 Hz with combined rated current of 3.42 A (3 x 1.14 A per pump). Motors carry IP55 sealing with maximum pressure of 10 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 10 bar.
Specified across demanding institutional sectors like mixed-use commercial buildings, corporate office towers and shopping centres, the set ensures total reliability. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- Maximum operating pressure of 10 bar with motors sealed to IP55.
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- Power use precisely tracks demand, avoiding the waste of fixed-speed alternates.
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- Three Grundfos CRNE 3-4 vertical multistage pumps run in parallel on one common base frame.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- Cascade logic brings pumps on-line and off-line against changing demand without manual intervention.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a smartphone.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Each main pump is rated 0.37 kW (P2), so per-pump draw scales down as speed follows demand.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Stainless steel manifolds provide two Rp 2 inch threaded manifold connections ready for plant pipework.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
What's Included
- 3 x Grundfos CRNE 3-4 vertical multistage pumps
- IE5 permanent magnet motors with integrated frequency converters
- Stainless steel suction manifold
- Stainless steel discharge manifold
- Non-return valves
- Isolation valves
- Pressure sensors/transmitters
- Pressure gauge
- 24L diaphragm pressure tank
- Factory assembled and tested booster system
SPECIFICATIONS
| Max Flow | 270 L/Min |
| Max Head | 38 m |
| Power | 3 x 0.37 kW / 415v |
| Rated Current | 3 x 1.14 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 60°C |
| Inlet Size | 50 mm |
| Outlet Size | 50 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What factory warranty period and Australian service support backs this booster package?
Purchasing protection on the Grundfos Hydro Multi-E 3 CRNE 3-4 U2 A-A-I-I-DU (part number 99752118) incorporates a genuine Grundfos two-year manufacturer warranty covering mechanical components, pipework, and drive units.
Which total water throughput does this packaged booster unit maintain across peak duty hours?
Maximum water throughput on the Hydro Multi-E 3 CRNE 3-4 reaches up to 270 L/min under full variable speed operation.
Which variable speed electric motor arrangement drives the centrifugal pumps on this assembly?
Precision motor modulation on the Hydro-Multi-E-3-CRNE-3-4 is delivered by three IE5 permanent-magnet MGE electric motors producing 0.37 kW per pump from a 3 x 380-415 V electrical supply.
Under high elevation demands, what total dynamic head does this parallel booster set produce?
For vertical pressure boosting, the Hydro Multi E 3 CRNE 3 4 produces up to 38 m total elevation head with an 10 bar maximum working pressure envelope.
What manifold sizing and valve hardware connects the parallel pump wet ends on this set?
Suction and discharge manifolding on the 3 CRNE 3-4 (Hydro Multi-E) features R 2 stainless steel headers with individual pump isolating valves and discharge non-return check valves.
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